Axle-box



UNITED STATES PATENT OFFICE.

JAMES M. KNAUS, OF SEDALIA, MISSOURI.

AX LE-BOX.

SPECIFICATION forming part `of Letters Patent No. 437,122, datedSeptember 23, 1890.

Application filed July 17, 1890.

T0 all whom it' may concern.-

Be it known that I, JAMES M. KNAUS, a citizen of the United States,residing at Sedalia, in the county of Pet-tis and State of Missouri,have invented certain new and useful Improvements in Bearing-Boxes forHand-Car and Velocipede Axles; and I do herebydeclare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

My invention relates to bearing-boxes with anti-friction rollers for acar or veloeipede axle; and it consists in certain novel constructions,combinations, and arrangements of parts, hereinafter fully described andspeciically claimed, whereby a box for a car or velocipede axle of noveland improved construction and great durability is produced, the samekeeping the axle and its anti-friction rollers perfectly lubricated, andbeing especially adapted for hand-cars and velocipedes, and when repairsare necessary admitting of the same being conveniently done.

In the accompanying drawings, Figure l is a central verticallongitudinal section of my improved box for a car or velocipede axle.Fig. 2 is a top view of the. same representing a portion of the metal ofthe outer casing broken away in order to expose portions of the interiorconstruction. Fig. 3 is a Vertical section of the outer casing and anaxle anda side view of the bearing for the friction-rollers, whichrollers and their journals are shown in end elevation. Fig. 4 is abroken transverse vertical section in the line :u o: of Fig. l. Fig. 5is a transverse vertical section in the'line y y of Fig. l.

The letter A in the drawings represents the upper part of the outercasing of the bearingbox, and A the lower part or cap thereof.

B are anti-friction rollers, and C removable bearing-blocks for thejournals of said rollers, and D a hand-car or velocipede-axle.V Theanti-friction rollers B are arranged horizontally in line with eachother and bear upon the axle D, and they have journals b, which are ttedinto j ournal-bearing recesses c, formed in the blocks C, and saidjournals are held in place by said blocks, and the bearing-blocks C areheld against the inner side surfaces a of the upper part A of the casingof the bearing-box by means of two central lugs a', and they arevertically secured by being held between the inner top surface a2 of thepartA and the top surfaceof the lower part A of said box, as seen in thedrawings. The top part A is provided with oil-holes a3, arranged nearlyin line with the side surfaces a2 below, and adjoining the saidoil-holes oilways c', preferably Haring, are provided in the sides ofthe bearing-blocks C, which lead the oil between the bearing-blocks andside surfaces a down to the journals b of the antifriction rollers B.Thelubricating-oil is thus caused freely to descend to the journals b,while at the same time it can accumulate in the oilways in suchquantities as to last for long journeys. rlhe lower part A of the boxincloses the lower portion of the axle D and holds it in contact withthe anti-friction rollers B. Its inner surface is depressed around theaxle D to such an extent as to leave a narrow bearing a4 at either side.Into this depression the oil which is not retained by the moving partsdescends, from whence it may escape through the small opening s in thebottom of the part A. The said escapeopening may be plugged, if desired.The parts A A are united by two bolts E, which in practice are passedthrough the upper part A and the car-frame, which rests upon it. Thesebolts are provided with nuts e, sunk into recesses a5 in the undersurface of the part A, and with nuts e e2 on their lower ends, the nutse holding the part A permanently to the car-frame, and the nuts e e2holding the parts A A together, and thus the lower part A can be removedwithout disturbing part A. In order to facilitate the insertion into thebox A of the bearing-blocks C, they may be provided with beveled endsurfaces c2, and similar matching surfaces may be formed on the part Aof the box. By this means jamming and other inconveniences experiencedwith vertical end surfaces during the insertion and withdrawal of theblocks will be avoided. The end portions a of the part A are made of thesame width as the bars of the car-frame, to which part A is fastened,while the middle or chambered portion containing the journal-bearingsand anti-friction rollers is made broader and extends in both directionsbeyond the bar to which it is con- IOO nected, and by this constructionthe oil-holes can be placed in the top of the part A, and the necessityof drilling them through the car-floor and frame is avoided.

Vith my improved axle-bearing box a handcar or velocipede can be startedwith the slightest power, and in its propulsion much less friction thanusual will be experienced.

What I claim as my invention is- 1. The hand-ear or velocipede axle-boxcornprising, in combination, a lower part A and an upper part A, the twoparts forming a general oil-chamber, and the part A having oilsupplTpassages in its top on both sides of the longitudinal center thereof,journal-bearing blocks C, having oilways in their outer faces and incommunication Wi th the general oil-chamber, friction-rollers B, andbolts E, provided with nuts e, fitting in recesses a5 of the part A, andnuts e', outside the box, all substantially as described.

2. The two-part axle-box provided with friction-rollers andjournal-bearings for said rollers, said bearings having oilways in theirouter faces, and the upper par't of said box being provided withpassages for supplying oil to the axles and rollers and also directly tothe journals of the rollers, substantially as described.

3. The combination of the downwardly-re movable journal-bearing blocksC, formed With beveled surfaces c2, with the two-part bearing-box A A',the part A being formed with matching beveled surfaces, substantially asdescribed.

In testimony whereof I hereunto affix my signature in presence of twowitnesses.

JAMES M. KNAUS. Witnesses:

J. C. VAN RIPER, S. E. MURRAY.

